Stabilization techniques for high resolution ultrasound imaging using beamspace Capon method

Shigeaki Okumura; Hirofumi Taki; Toru Sato

doi:10.1109/ICASSP.2015.7178098

Stabilization techniques for high resolution ultrasound imaging using beamspace Capon method

Shigeaki Okumura, Hirofumi Taki, Toru Sato

MEN - Biomedical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

Several adaptive beamforming imagers have been proposed to improve the spatial resolution of medical ultrasound imaging. These imagers employ spatial averaging technique and diagonal loading technique to suppress correlated interferences and to acquire robustness, respectively. In this study, we propose the technique that selects the optimum size for spatial averaging with respect to the measurement depth. We employ a small diagonal loading factor of -40 dB to avoid the deterioration in image quality. In a simulation study, the proposed method succeeded to improve the image quality compared to a conventional beamspace Capon method. The sidelobe level and the -6 dB beam width in the proposed method were -26 dB and 0.27 mm, respectively, where those in the conventional method were -16 dB and 0.40 mm, respectively. The proposed method succeeded to depict the higher resolution image than that of the conventional method.

Original language	English
Title of host publication	2015 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	892-896
Number of pages	5
ISBN (Electronic)	9781467369978
DOIs	https://doi.org/10.1109/ICASSP.2015.7178098
Publication status	Published - 2015 Aug 4
Event	40th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015 - Brisbane, Australia Duration: 2014 Apr 19 → 2014 Apr 24

Publication series

Name	ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume	2015-August
ISSN (Print)	1520-6149

Other

Other	40th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015
Country	Australia
City	Brisbane
Period	14/4/19 → 14/4/24

Keywords

Adaptive beamforming
Capon method
Ultrasonography
Ultrasound imaging
beamspace

ASJC Scopus subject areas

Software
Signal Processing
Electrical and Electronic Engineering

Access to Document

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Cite this

Okumura, S., Taki, H., & Sato, T. (2015). Stabilization techniques for high resolution ultrasound imaging using beamspace Capon method. In 2015 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015 - Proceedings (pp. 892-896). [7178098] (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; Vol. 2015-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICASSP.2015.7178098

Stabilization techniques for high resolution ultrasound imaging using beamspace Capon method. / Okumura, Shigeaki; Taki, Hirofumi; Sato, Toru.

2015 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. p. 892-896 7178098 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; Vol. 2015-August).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Okumura, S, Taki, H & Sato, T 2015, Stabilization techniques for high resolution ultrasound imaging using beamspace Capon method. in 2015 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015 - Proceedings., 7178098, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, vol. 2015-August, Institute of Electrical and Electronics Engineers Inc., pp. 892-896, 40th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015, Brisbane, Australia, 14/4/19. https://doi.org/10.1109/ICASSP.2015.7178098

Okumura S, Taki H, Sato T. Stabilization techniques for high resolution ultrasound imaging using beamspace Capon method. In 2015 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2015. p. 892-896. 7178098. (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings). https://doi.org/10.1109/ICASSP.2015.7178098

Okumura, Shigeaki ; Taki, Hirofumi ; Sato, Toru. / Stabilization techniques for high resolution ultrasound imaging using beamspace Capon method. 2015 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 892-896 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings).

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